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KMID : 0356620130280010003
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Journal of Korean Society of Endocrinology
2013 Volume.28 No. 1 p.3 ~ p.5
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Role of Reactive Oxygen Species in Hypothalamic Regulation of Energy Metabolism
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Diano Sabrina
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Abstract
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To understand the etiology of metabolic disorders, including obesity and type II diabetes, it is essential to gain better insight into how stored and available energy sources are monitored by the central nervous system. In particular, a comprehension of the fine cellular interplay and intracellular mechanisms that enable appropriate hypothalamic and consequent endocrine and behavioral responses to both circulating hormonal and nutrient signals remains elusive. Recent data, including those from our laboratories, raised the notion that reactive oxygen species (ROS) generation is not merely a by-product of substrate oxidation, but it plays a crucial role in modulating cellular responses involved in the regulation of energy metabolism. These review summarizes the published recent data on the effect of ROS levels in the regulation of neuronal function, including that of hypothalamic melanocortin neurons, pro-opiomelanocortin and neuropeptide Y-/agouti related peptide-neurons, in the modulation of food intake.
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KEYWORD
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Hypothalamus, Leptin resistance, Peroxisomes, Pro-opiomelanocortin, Reactive oxygen species
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